Improvement in machines for cutting out the ends of eyelets



NPETERS. PHOTQ-UTNOGRAPHER, WASHINGTON, D. C.

UNITED STATES PATENT OEEIGE.

ESEK TALLMAN AND NICHOLAS G. HOXSIE, OF PROVIDENCE, RHODE ISLAND,

ADMINISTRATORS OF DAVID K. HOXSIE, DECEASED, ASSIGNORS TO WA- TERBURYBRASS COMPANY AND AMERICAN FLASK AND CAP COMPANY,

OF \VATERBURY, CONNECTICUT.

IMPROVEMENT IN MACHINES FOR CUTTING OUT THE ENDS 0F EYELETS.

Specification forming part of Letters Patent No. 106,939, dated August30, 1870.

DAVID K. HoXsIE, deceased, late ofthe city and county of Providence, inthe State ot' Rhode Island, during his life-time invented certainImprovements in l\[achinery for the Manufacture of Metallic Eyelets, ofwhich the followin g is the specification, reference being hadto theaccompanying drawin g, makin gpart of the same.

The said invention relates to improvements I in the manufacture ofeyelets, by which the metal is first converted into a bell-shaped pieceor cap, by suitable means, in one machine or class of machinery, andafterward, by other means or by another and distinct class of machinery,which removes the material from the closed or small end of the bell-cap,it is converted into an eyelet ofthe proper form.

The invention, in this instance, relates particularly to the means bywhich the closed or small end ofthe bell-cap is removed.

The first part of this invention relates to the means employed to removethe metal at the closed end of the bell-cap, to open it and convert thecap into an eyelet, and also to flatten the ilange or flaring open endof the same. The opening part of this operation has heretofore beenperformed by cutting or punching out a chip at the closed end by meansof the end ofthe formingpunch at the bottom of the die from which itreceives its eyelet form, or by like means in a separate machine. By themeans employed in this invention, however, the bell-caps or pieces aredelivered in a mass, and fed, by suitable means, to a device which holdsthe same by the Haring open end, while the small closed end is removedby grinding ott the metal; and this part of the invention consists of aperforated endless apron or belt of metal on a pair of straining-wheels,to regulate the tension in the perforations of which the bell-caps areinserted, point foremost, and held firmly by their ilan ge between thewheels face and the edge of the perforation in the apron, and socarriedby the movement of the apron, and presented to the dece which removes-the material to open the closed end and complete the eyelet, andafterward delivers the eyelet from the apron into a snit-ablereceptacle.

This part ofthe invention includes a device for feeding thebell-capstotheperforated apron, consisting of one or more moving` brushes, whichsweep the caps that are deposited in a mass on the apron in an oppositedirection to its carrying movement, and by so doing stir the masssufficiently to present some of' the caps in proper position to insertthemselves in the perforations, and be delivered from the mass andcarried by the apron to the device which removes the material from theirend.

This part of the invention also comprises the device for grinding offthe small end of the caps as they are presented by the moving perforatedapron; and consists of one or more grinding-wheels, of suitablegradations of cut, which revolve with a laterally-vibrating movementclose to that portion of the aprons surface which is around thestraining-wheel, where the caps are more firmly held, and are adjustedwith respect to said surface to a degree that will permitthe grindingoffof enough material from the protruding; ends of the caps to open thesame, and also determine the length of the eyelet.

In the accompanyingr drawing, Figure 6 is a side elevation and sectionof the machine which grinds off the small end of the bell-cap. Fig. 7 isa plan of the machine, some unimportant parts of which are omitted togive an unobstructed view of those of more consequence. S represents asection ot' the straining-wheel and apron, showing the manner offlattening the flange of the eyelet. Fig. 9, No. l represents thebell-cap before the small end is removed, and No. 2 the cap with its endground off and iauge flattened to complete the eyelet.

Similar letters denote like parts in the several iigures.

F is the frame of the machine, upon which are mounted on the shafts aa', turning iusuitable bea-rin gs, the straining-wheels Il B2, overwhich is placed the endless metallic apron A, which is strained to asuitable degree of tension by means of the screws ff, Fig. 7, which drawthe bearings of the wheel B apart from those of B2 until the requisitetension is obtained. These wheels are also provided with a slight iiangeon each side of their face, to keep the apron in line and upon the wheelunder the circumstance o' its use.

The apron A is best made of sheet-steel, as most capable of resistingthe strain and wear to which it is subjected, and it is regularlyperforated over its entire surface with holes of suitable size toreceive the bell-caps point foremost, and hold them by their flange, asshown in Figs. 6 and 8, between the edge ot' the perforation in theapron and the face of the wheel B2, to which a slow rotative movementisimparted, in the direction indicated by the arrows, by the inner wheelIt and arm XV, which are operated through the bevel-gears S by thedriving-pulleys l?, Fig. 7

The bell-caps are deposited in a mass at E on the lower straight surfaceofthe apron, between the two wheels, and nearest to wheel B. Betweenthis point and the wheel B2 are arranged a number of revolvingbrushcylinders, Dl D2 D3, on suitable spindles, that are driven by bandsconnecting with the wheel C on the same shaft with the strainingwheel B,and like bands connecting the movements of each with the other. Thesebrushes revolve in one direction, as indicated by the arrows, and inopposite direction to the apron A, against which they sweep, and withamore rapid movement.

By this arrangement the mass ot bell-caps on the apron are swept backfrom moving with it, and are stirred and tumbled thereon,

so that some out of the mass are presented to the passing pertorationspoint foremost, and are held in the apron supported by their iianges,and carried past the brushes to the position on the wheel B2. (Shown inFig. '6.) A mass of caps may be placed behind each brush, and therebymore be inserted in the apron should the operation of one brush be foundinadequate to ll all the perforations.

In ease any of the caps should catch upon the brush, they may be removedby a comb or clearer, b, consisting of a set of pins or teeth on across-bar extending lengthwise of their cylinder, and with their endspenetrating a short distance into the brush, the said teeth being soclosely set as to prevent the caps from passing between them. They willby this means be readily stripped from the brush and drop back into themass.

As the flange ofthe caps in the perforations come in contact with theface of the wheel B2, owing to the tension of the apron they become sliglitl yiiattened by being pinched firmly between the edge of theperforation and the t'ace of the wheel, as shown in Fig. S, in whichcondition they are presented to the grindingwheels M N, the former beingmounted in adjustable bearings on the frame of the machine in line withthe wheel B2, and the latter in like bearings above it. These: wheelsmay be of metal, with their faces coated with emery, that on the face ofthe wheel M being of eoarser grade than that on wheel N, the formerserving to remove the material on the end of the bell-cap, while thelatter serves only to butt' oft' the end of the eyeletlsmoothly.

The wheel M is adjusted to the requisite position with respect to theprotruding cap ends on the wheel B2 by means of the screws V V at thisend of the frame, and the wheel N is adjusted to its position by meansof the nut g on the stands Zbeneath the bearings t on the top of thestand, in which the spindle of this wheel revolves.

The motion of the two grinding-wheels is communicated by means of a bandover the pulleys T T, and both are driven by the pulley L. Thesegrinding-wheels have end-play in their bearings, and have a quickvibratory movement laterally therein, produced by the two clutch -leversO O, the forked end ot` which straddles a groove in the spindle ot' eachwheel, while the other end of each is operated by a groove-cam on theshaft of the driving-pulley l).

The several parts being thus arranged, the operation is, that thebell-caps are deposited on the apron at E, and, by means of the brushesD, they are inserted in the perforations, as shown at t t, Fig. 6, a-ndare carried along to the wheel B2, where they are griped by their flangebetween the face of the wheel and the apron, and the lange ilattened.

As the caps ascend with the face otl the. wheel B2, their protrudingends come in contact with the grinding-wheel M, in passing which theclosed end is ground oit' and opened. Thence passing on, the open endsare brought into contact with the grinding-wheel N, when the roughground end is smoothed off, after which, on passing over the top ot' thewheel B2, the now completed eyelets drop by their own gravity from theperforations into the receptacle X, whence they are taken in quantitiesand subjected to the subsequent operation ofannealing and coloring,preparatory to bein g packed for sale.

lhat is claimed as the invention ot' thesaid DAVID K. Hoxsrn is- 1. Thecombination of the endless perforated belt or apron A, the brush orbrushes D, and the grinding wheel or wheels M N, substantially as andfor the purpose specified.

2. The mode herein described of making eyelets, by first converting themetal into detached bell-shaped pieces or caps, and afterward openingthe end an d liattening the tlan ge of the caps to convert them intoeyelets, in the manner and by means substantially as speciied.

In testimony whereof we, said administrators, have hereunto subscribedour names this 8th day of April, A. D. 1870.

ESEK TALLMAN, NICHOLAS G. HOXSIE,

Adm/[11fstrni'ors. Vitilesses jI'sAAc A. BnowNnLr., E. l?. lnnmrrs.

